package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.dto.DishDTO;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端.菜品浏览接口")
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;
    /*根据id查询菜品*/
    @GetMapping("/list")
    @ApiOperation("根据IDc查询菜品")
    public Result<List<DishVO>> list(Long categoryId){
        //构造redis的key,规则：dish_id分类id；
        String key="dish_"+categoryId;
         //查询redis中是否存在菜品数据

      List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(key);


        //如果存在，直接返回，无须查询数据
        if(list!=null&&list.size()>0){
            return Result.success(list);
        }



        log.info("开始可以浏览商品");
             Dish dish=new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);//查询起售中的菜品

        //如果不存在，查询数据库，查询到的数据放进redis中的菜品
        List<DishVO> list1 =dishService.listwhitflavor(dish);
          redisTemplate.opsForValue().set(key,list1);
        return Result.success(list);

    }






}
